Backwater cellar-drain.



J. P. FARLEY.

BAGKWATBR GELLAR DRAIN.

APPLIOATION FILED NOV. 29, 1912.

Patented Feb. 24, 1914.

JEZZUZ 1 Y, WW1/1 1 f..JIIIIIIIIIIIIII JOI-IN P. FARLEY, 0F KANSAS CITY,MISSOURI.

BACKWATER GELLAR-DRAIN.

Specification of Letters Patent.

Patented F eb. 24, 1914.

Application filed November 29, 1912. Serial No. 734,073.

T0 all whom it may conc-era.'

Be it known that I, JOI-IN P. FARLEY, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented certain new and useful Improvements in BackwaterlCellar-Drains, of which the :following is a specification.

This invention relates to back-water cellar drains, of that class knownas the shallow or dry-pan drain and embodying a ball float valveconfined in the mouth of the trap and below the discharge opening of thepan for the purpose of sealing the last-named opening against back waterfrom the sewer, and my object is to produce a drain of the characterabove outlined provided with means whereby the ball float can be keptwhirled or agitated when desired, for the purpose of preventing slimeand other matter accumulating on the ball and eventually preventing itfrom seating properly and thus permitting gas from the sewer to back upinto the pan.

lVith this general object in view, the invention consists in certainnovel and peculiar features of construction and organization ashereinafter described and claimed; and in order that it may be fullyunderstood reference is to be had to the accompanying drawing, in which-Figure 1, is a top plan view of a back water cellar drain embodying myinvention. Fig. 2, is a central vertical section of the same, Fig. 3, isa cross section on the dotted line III of Fig. 2.

In the said drawing where like reference characters identifycorresponding parts in all the figures, 1 is a trap having a dischargeportion 2, for communication with the drain pipe or sewer, not shown. Atits opposite end the trap has an enlargement or mouth 3 provided with aperforated bottom 4 and communicating at its upper end with a shallowpan 5, and said pan around its point of communication with the mouth 3of the trap is provided with a shallow recess 6, to receive theoutwardly projecting flange of a funnel 7 depending into the mouth 3,and forming a downwardly disposed valve seat for engagement by a ballfloat 8, located in said mouth and incapable of passing through theperforated bottom thereof. The funnel is secured rigidly in place byclamping screws 9, and the joint between the funnel and the trap and panis made liquid and gas tight by means of the interposed gasket 10.

' 11 is a water supply pipe communicating with the head of the trap andcontrolled by any suitable type of valve, for instance by thehand-operated valve 12.

13 is a short pipe section screwed into the pipe 11 and flared at itsdischarge end as atv 14, and extending slidingly through said pipe isthe stem 15 of a valve 16, the latter being beveled to correspond withand fit snugly against the flaring end or seat 14.

17 is a nut screwed on the stem and 18 a coiled spring fitting aroundthe stem and bearing at its opposite ends against the pipe section ortube v13 and nut 17 for the purpose of holding the valve against itsseat 14, and in order that water permitted to flow through pipe 11, mayengage and unseat the valve and thus gain access to the mouth of thetrap, the stem of the valve is flattened at 19 for the greater part ofits length so as to provide passages 2() through which the water maypass through the tube 13 to engage the valve. It will thus be seen thatwhen the valve 12 is opened, water is discharged or sprayed against theball S by reason of the flare of the seat 14 and tapering of the valve16, the impact on the ball causing it to turn or whirl with sufficientrapidity to guard against slime adhering to it and eventuallyinterfering with the proper performance of its function.

As a means of keeping the interior of the pan clean, a pipe 21 branchesfrom pipe 1.1 into the pan near the upper margin thereof and is providedwith opposite discharge holes 22 through which the water shall escapehorizontally into the internal circumferentialgroove 23 in the pan andto compel the water to make a complete circuit of the pan, and restrainit from splashing upward therefrom the ordinary drain plate 24covering'the pan is provided with depending circular iange 25,circumferentially grooved at 26, the two grooves 23 and 26 forming achannel of suflicient capacity to accommodate the water discharged inboth directions from pipe 21. The flange 26 also tends to compel thewater as it passes downward within the pan to hug'the interior thereofand thus insure its thorough cleansing.

For clean-out purposes a plug 27 is mounted in the opening 28,establishing communication between pan 5 2 of the trap.

Under normal conditions, the trap stands charged with water and holdsthe valve upwardly against the overlying valve seat, so that it shallprevent water backing up into the pan, and cooperate with the water inthe trap in preventing noxious gases escaping upwardly into the pan.When water is poured into the trap7 it depresses the ball and the trapoverflows to the sewer, suiicient water remaining of course to reseatthe valve and maintain the seal, it being understood that the positionwhich the ball occupies in full lines Fig. 3, is that which it occupieswhile water is flowing thro-ugh the trap from the pan to the sewer, andthat the ball float when thus depressed does not close the perforationof bottom t, and hence does not prevent the water flowing through thetrap.

At intervals the apparatus can be thoroughly flushed out and cleaned byopening valve l2 and permitting water underpressure to enter the pan andthe mouth of the trap., it being apparent that when the valve l2 isopened, the pressure in the pipe ll will unseat valve 16 and spray thewater upon the ball valve at an angle to the surface thereof and thuscompel the same to whirl and portion rapidly and thus relieve itself ofany matter accumulated thereon, and should the water back up from thesewer at any time, the valve will engage the overlying seat and thevalve 16 will prevent the water from the sewer lay-passing through pipesll and 21 into the pan.

From the above description it .will be apparent that I have produced aback-Water cellar drain embodying the features of advantage enumeratedand I wish it to be understood that I reserve the right to make allchanges properly falling within the principle of the invention asdefined by the appended claims.

l. A back-water cellar drain, comprising a pan, a trap communicating atone end with the pan, a downwardly-disposed valve seat and a float valveto engage the same and thereby normally closing communication betweenthe pan and trap, a pipe for discharging water under pressure againstsaid float valve to impart movement to thc same for cleansing purposes,and a yieldingly seated valve adapted to open under pressure of waterfrom said pipe and to close when such water is cut olf to prevent waterbacking into said pipe from the trap.

2. In a back-water cellar drain, a pan, a trap and a downwardly-facingvalve-seat, a spherical float valve adapted to be held by water in thetrap against said seat, a pipe for discharging water into the trap in aplane below said valve seat, means to maintain the ball in the plane ofsaid pipe when the valve is not in engagement with said valve-seat, anda check valve mounted in said pipe to preventwater entering the latterfrom the trap and to open under pressure of water in said pipe.

In testimony whereof I aliiX my signature, in the presence of twowitnesses.

JOHN P. FARLEY.

IVitnesses:

HELEN C. RODGERS, G. Y. THoRrn.

Copies o! this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

